[CentOS] Fault tolerance with webservers

[sbeam]

Interested in this discussion too, for reasons recently discussed...

On Tuesday 27 May 2008 09:07, Fajar Priyanto wrote:
> For a starter, there is a very simple tool for this.
> It's http://www.inlab.de/balance.html

> 2. RedHat Cluster Suite dan Piranha (http://www.redhat.com)
> 3. Linux Virtual Server (http://www.linuxvirtualserver.org)

Do all of these (or IPVS or Cluster Suite/GFS) take care of real-time sharing 
of storage (sessions, database, files, logs) between all nodes? For a LAMP or 
JEE or any other HTTP stack serving anything but readonly static files, this 
is usually a requirement. 

GFS is for sharing filesystem I know and there are howtos. So would you put 
Balance or LVS on top of GFS, or...

Would HA/DRBD be on the short list? http://www.drbd.org/ in our case we have a 
two-node cluster anyway so this seems like the most straightforward option. 
Or would something else be superior, more up-to-date?

Sam